Image Moments {#tutorial_moments}
=============

Goal
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In this tutorial you will learn how to:

-   Use the OpenCV function @ref cv::moments
-   Use the OpenCV function @ref cv::contourArea
-   Use the OpenCV function @ref cv::arcLength

Theory
------

Code
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This tutorial code's is shown lines below. You can also download it from
[here](https://github.com/opencv/opencv/tree/master/samples/cpp/tutorial_code/ShapeDescriptors/moments_demo.cpp)
@include samples/cpp/tutorial_code/ShapeDescriptors/moments_demo.cpp

Explanation
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Result
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Here it is:
![](images/Moments_Source_Image.jpg)
![](images/Moments_Result1.jpg)
![](images/Moments_Result2.jpg)